Equivalent & Substitute Parts for 5V9885TPFGI

Part Overview

The 5V9885TPFGI is a 500MHz clock generator with integrated PLL functionality manufactured by Renesas Electronics Corporation. This IC operates as a single-circuit clock synthesizer with programmable divider and multiplier capabilities, supporting multiple input and output standards including LVCMOS, LVTTL, LVDS, and LVPECL. The device is classified as obsolete, necessitating identification of active alternative components that maintain functional and electrical compatibility for new designs and production continuity.

Substiute Parts

5V9885TPFGI

Renesas Electronics CorporationIn Stock: 21815V9885TPFGI Datasheet

Current PartRFQ

5P35023B-000NLGI

Renesas Electronics CorporationIn Stock: 9755P35023B-000NLGI Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The 5P35023B-000NLGI qualifies as a functional substitute based on the following critical parameters:

Matching Core Specifications:

• Maximum frequency: 500MHz (identical)
• PLL with bypass capability (identical)
• Single circuit configuration (identical)
• Divider and multiplier support (identical)
• Operating temperature range: -40°C ~ 85°C (identical)
• Manufacturer: Renesas Electronics Corporation (same source)
• Compliance: ROHS3 and REACH unaffected (equivalent)

Functional Compatibility:

• Input standards: LVCMOS and Crystal (LVCMOS overlap with original)
• Output standards: LP-HCSL, LVCMOS, LVDS, LVPECL (includes all original output types)
• Differential output capability: Yes (maintains differential output support)

Design Considerations:

• Supply voltage range differs: 1.71V ~ 1.89V, 2.375V ~ 2.625V, 3.135V ~ 3.465V (includes 3V ~ 3.6V operating window)
• Package change: 24-VFQFN Exposed Pad versus 32-LQFP (different form factor)
• Input:Output ratio: 1:6 versus 2:6 (different configuration flexibility)
• MSL rating: 1 (Unlimited) versus 3 (168 Hours) (improved moisture handling)

Parameter Comparison

Engineering Selection Recommendations

The 5P35023B-000NLGI is the manufacturer-recommended substitute for the obsolete 5V9885TPFGI. Selection of this alternative is justified on the following engineering grounds:

Product Status and Availability: The 5V9885TPFGI is classified as obsolete, making long-term procurement and supply chain continuity problematic. The 5P35023B-000NLGI maintains active production status with documented inventory availability, ensuring design sustainability.

Electrical Equivalence: Both devices operate at identical maximum frequency (500MHz), support PLL with bypass configuration, and maintain the same operating temperature range (-40°C ~ 85°C). Supply voltage compatibility is confirmed within the 3V ~ 3.6V window of the original specification.

Compliance and Certifications: Both components meet ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for equivalent designs. The substitute demonstrates improved moisture sensitivity rating (MSL 1 versus MSL 3), providing enhanced reliability in storage and handling.

Design Integration Considerations: PCB layout modification is required due to package change from 32-LQFP to 24-VFQFN Exposed Pad. The substitute supports all output standards of the original (LVCMOS, LVDS, LVPECL) with additional LP-HCSL capability. Input configuration differs (Crystal input versus LVTTL), requiring firmware or application-level adjustment if LVTTL input was utilized in the original design.

Frequently Asked Questions (FAQ)

Q: Can the 5P35023B-000NLGI directly replace the 5V9885TPFGI without PCB modifications?

A: No. The package change from 32-LQFP to 24-VFQFN Exposed Pad requires PCB layout redesign. Pin assignments and footprints are not compatible for direct substitution.

Q: Are the output signal standards compatible between these two devices?

A: Yes, for LVCMOS, LVDS, and LVPECL outputs. The 5P35023B-000NLGI supports all three standards present in the original device. LVTTL output is not listed for the substitute; applications requiring LVTTL output require verification of alternative output standards.

Q: What is the impact of the different input:output ratio (1:6 versus 2:6)?

A: The substitute supports a 1:6 input:output ratio compared to the original 2:6 ratio. This affects the flexibility of frequency synthesis configurations. Applications requiring specific frequency multiplication factors must be evaluated against the substitute's capabilities.

Q: Does the substitute lack multiplier functionality?

A: The 5P35023B-000NLGI is specified with divider support but no multiplier function, whereas the original supports both. Applications dependent on frequency multiplication require design review to confirm compatibility with divider-only operation.

Q: Is the improved MSL rating (1 versus 3) significant for my application?

A: MSL 1 (Unlimited) provides superior moisture tolerance compared to MSL 3 (168 Hours). This reduces risk during storage, handling, and assembly processes, particularly in high-humidity environments.

Q: What supply voltage options does the substitute provide?

A: The 5P35023B-000NLGI supports three voltage ranges: 1.71V ~ 1.89V, 2.375V ~ 2.625V, and 3.135V ~ 3.465V. The original 3V ~ 3.6V operating window falls within the third range, confirming voltage compatibility.